| ——
The solid compound shaft, made of three different materials, carries the two torques shown. Use G = 28 GPa for aluminum, G = 83 GPa for steel, G = 35 GPa for bronze. Calculate the
angle of rotation in degree. Use two decimal places.
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Aluminum 7% Steel Bronze (©
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5.29
From the beam loading shown, what is the maximum bending moment force in KN-m? Place your answer in two decimal places.
52.56
MALI TONG
MALI PANGATLO (1.17
TONG PANGATLO (1.17 DAPAT)
DAPAT)
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The rigid bar AB, attached to the aluminum and steel rods, is horizontal before the load P is applied. Neglect all weights. Determine the vertical displacement of steel in mm if P = 50 KN.
Use two decimal places.
Aluminum
L=3m
A=300 mm?
E=70GPa
t 3.5m
1.92
A Moving to the next question prevents changes to this answer. Question 6 of 10 >
Question 6
A truck and trailer combination crossing a 12 m span has axle loads of 10 KN, 20 KN and 30 KN separated respectively by distance of 3 m and 5 m. Determine the maximum shear
developed in the span. Express your answer in KN and use two decimal places.
45
& Moving to the next question prevents changes to this answer. Question 6 of oO
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The torque of 100 kip-ft produces a maximum shear stress of 8000 psi in the 16-ft-long hollow steel shaft. Note that the inner diameter of the shaft is two-thirds of its outer diameter D. Use
G=12x 40° psi for steel. Determine the outer diameter, D in inches. Use two decimal places.
9.84
Axial loads are applied to the compound rod that is composed of an aluminium segment rigidly connected between steel and bronze segments. Working stresses are 120 MPa for steel, 68
MPa for aluminum, and 110 MPa for bronze. What is the value of P in KN if the stress in steel governs? Use two decimal places.
Bronze Aluminum Steel
A=400mm? A=600mm? A=300mm?
2P 3P
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The beam shown is subjected to a uniformly distributed load. For the cross section at x = 2 m from the left support, determine the shear stress at the neutral axis in KPa. Use two decimal
places.
0.25
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mt.
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Cross sectior
The figure shows a glued joint, known as a finger joint, in a 6-in. by %-in. piece of lumber. Find the normal stress in psi acting on the surface of the joint. Use two decimal places.
800 Ib 800 Ib
$——_—— 30°
11.91
MALI TO
MALI (412.21)
TO (412.21)
The beam whose cross-section is shown below consists of five planks of wood glued together. At a given axial position the beam is subjected to a shear force V = 6000 Ib. What is the shear
stress acting on the lower-right glued joint? Express your final answer in psi and use two decimal places.
foe in, --]2 in. ae ine!
187.50
a
A flanged bolt coupling consists of six 1/2 inch steel bolts evenly spaced around a bolt circle 12 inches in diameter and four 3/4 inch aluminum bolts on a concentric bolt circle 8 inches in
diameter. What torque can be applied without exceeding 9 ksi in the steel or 6 ksi in the aluminum ? Use G = 12 x 10° psi for steel andG=4x 10° psi for aluminum. Express your answer
in Kip-in and use two decimal places.
77.75
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Question 12 10 points — Save Answer
Calculate the increase in stress in steel segment of the compound bar if the isi d by 80°F. A that the sup orts are unyielding and use the ing data:
A (in?) E (psi) a([F)
Aluminum 1.5 10 x 10° 12.8 x 10-°
Steel 2.0 29 x 10° 6.5 x 10°°
L— 10 gis ——
Express your answer in psi and use two decimal places.
9748.32
Question 1 10 points |
In figure shown, the aluminum shell and brass core are fully bonded ther. The is dta ip of 20°C. Considering axial ion only, ine the unit
stress in aluminum shell when the temperature reaches 175°C. Express your answer in MPa and use two decimal places.
7.23
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A flanged bolt coupling consists of ten 20-mm-diameter bolts spaced evenly around a circle of 400 mm in diameter. Determine the torque capacity of the coupling if the allowable shearing
stress in the bolts is 40 MPa. Express your answer in KN-m and use two decimal places.
25.13
